* Astronomy

Mount Aniakchak is a 3,400 year old volcanic caldera (about 10 kilometres in diameter) located in the Aleutian Range of Alaska, United States. The area around the volcano is the Aniakchak National Monument and Preserve, maintained by the National Park Service.
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Latitude: 56°54'21" N , Longitude:  158°12'32" W

Ed ~ Eruption in 5250 BC ± 1000 years